1 files changed, 92 insertions, 0 deletions
diff --git a/contrib/gcc-changelog/git_email.py b/contrib/gcc-changelog/git_email.py
new file mode 100755
index 0000000..e1d6b70
--- /dev/null
+++ b/contrib/gcc-changelog/git_email.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+#
+# This file is part of GCC.
+#
+# GCC is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 3, or (at your option) any later
+# version.
+#
+# GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.  */
+
+import os
+import sys
+from itertools import takewhile
+
+from dateutil.parser import parse
+
+from git_commit import GitCommit
+
+from unidiff import PatchSet
+
+DATE_PREFIX = 'Date: '
+FROM_PREFIX = 'From: '
+
+
+class GitEmail(GitCommit):
+    def __init__(self, filename, strict=False):
+        self.filename = filename
+        diff = PatchSet.from_filename(filename)
+        date = None
+        author = None
+
+        lines = open(self.filename).read().splitlines()
+        lines = list(takewhile(lambda line: line != '---', lines))
+        for line in lines:
+            if line.startswith(DATE_PREFIX):
+                date = parse(line[len(DATE_PREFIX):])
+            elif line.startswith(FROM_PREFIX):
+                author = GitCommit.format_git_author(line[len(FROM_PREFIX):])
+        header = list(takewhile(lambda line: line != '', lines))
+        body = lines[len(header) + 1:]
+
+        modified_files = []
+        for f in diff:
+            if f.is_added_file:
+                t = 'A'
+            elif f.is_removed_file:
+                t = 'D'
+            else:
+                t = 'M'
+            modified_files.append((f.path, t))
+        super().__init__(None, date, author, body, modified_files,
+                         strict=strict)
+
+
+if __name__ == '__main__':
+    if len(sys.argv) == 1:
+        allfiles = []
+        for root, _dirs, files in os.walk('patches'):
+            for f in files:
+                full = os.path.join(root, f)
+                allfiles.append(full)
+
+        success = 0
+        for full in sorted(allfiles):
+            email = GitEmail(full, False)
+            print(email.filename)
+            if email.success:
+                success += 1
+                print('  OK')
+            else:
+                for error in email.errors:
+                    print('  ERR: %s' % error)
+
+        print()
+        print('Successfully parsed: %d/%d' % (success, len(allfiles)))
+    else:
+        email = GitEmail(sys.argv[1], False)
+        if email.success:
+            print('OK')
+            email.print_output()
+        else:
+            if not email.lines:
+                print('Error: patch contains no parsed lines', file=sys.stderr)
+            email.print_errors()